Extreme Flyers X350 5A2, 5 CH Coaxial, flies in wind/Fast forward Flight capable. - Page 14 - RC Groups
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Jan 25, 2012, 09:55 PM
Si Vis Pacem Para Bellum!
Doubletap's Avatar
Quote:
Originally Posted by flycracker
Well, I got started with a real bang. Rather not say just how that happened, but I ordered a new fly bar. Have absolutely no idea how I'll get tie pin out and the new one in. All else seems to be ok. Is that going to be a major project requiring a whole new set of special tools?

Guess I now know why I avoided helis all these years.
Any and all comments are welcome.
Rich
If this is your very first helicopter, then I would recommend you get some simulator time, crashes cost nothing, that way you can learn basic control response and orientation. You don't need anything fancy or expensive, just the basics:

http://www.xheli.com/ek2-0905a-flightsimulator.html
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Jan 26, 2012, 10:45 AM
Always, against the wind
Thetis's Avatar
If you want a freeware Sim with your own PC joystick then:

http://www.marksfiles.net/HeliSim/
Jan 26, 2012, 11:06 AM
Rich
flycracker's Avatar
Quote:
Originally Posted by Thetis
If you want a freeware Sim with your own PC joystick then:

http://www.marksfiles.net/HeliSim/
That's all good but I have a Mac and I love it. Just waiting for the rest of the software developers to catch up.
I have mucho years flying RC, just not Heli. I'll get it.
It really creates a major fuss when you accidentally smack the throttle to full while the heli is sitting on the ground. That sucker took off like a rocket.
Luckily there was a nice small fully leafed out tree to intercept.
Thanks guys,
Rich
Jan 26, 2012, 03:39 PM
Upstanding Member
Kurt's Avatar
Quote:
Originally Posted by Doubletap
any heat sink for a 20mm motor will work or specifically for 180 brushed motors with the two flats, such as these:

http://www.slickzero.com/page/SRHP/P...rAccess/EA-016

I used those Maxx Prod sinks only because I already had them in my inventory as I use them for 20mm brushless EDF setups.
Does the photo below show 20mm heat sinks? Seems too large, or?
Jan 26, 2012, 03:55 PM
Rich
flycracker's Avatar
Quote:
Originally Posted by Kurt
Does the photo below show 20mm heat sinks? Seems too large, or?
Sure looks like no contact tween the heat sink and motors thus no reason for the thermal paste. Good eye Kurt
Jan 26, 2012, 06:50 PM
Staying Frosty
Hellsiege's Avatar
Quote:
Originally Posted by Kurt
Does the photo below show 20mm heat sinks? Seems too large, or?
Good call, didn't notice that when that photo was posted before, but your right no way that's going to do much for added cooling. Typically you'd see the heatsink up tight against the motor with thermal paste adding to how much heat it can dissipate like in this photo.
Latest blog entry: Construction Projects - Updated
Jan 26, 2012, 07:35 PM
Upstanding Member
Kurt's Avatar
Yeah unless there's a tight fit between the motor and heat sink all you're doing is adding weight and cutting down on cooling airflow around the motor. Doing more harm than good.

Here's one I'm trying out on my 120SR.
Don't know where I even got this one, found it in a pile of my old RC Motorcycle parts.
With both the inner adapter ring and outer, finned heat sink it weighs in at a beefy 12g, but the scale fuselage I'm currently running requires some extra weight up front, and the Xtreme motor (20mm, maybe these will work with the X350?) will easily lift it so I'll at least use the 4g inner ring to add some extra heat-dissipating metal to the motor.
Jan 27, 2012, 12:39 AM
Split S
TimJohnson's Avatar
Just a heads up, I will have one of these flying at the Arizona Electric Festival this weekend.
Jan 27, 2012, 07:32 AM
Registered User
kodak_jack's Avatar
The cure for the heat problem was the Aero-Nutz motors with large cooling vents in the can. Unfortunately, the clowns who make them are giving their vendors a hard time on price and quantity and nutzing the whole thing up. They were the #1 replacement for the Lama 4 and CX-2 heli's. Now, we're left with Xtreme motors or going brushless.
Jan 27, 2012, 03:52 PM
Si Vis Pacem Para Bellum!
Doubletap's Avatar
Quote:
Originally Posted by flycracker
Sure looks like no contact tween the heat sink and motors thus no reason for the thermal paste. Good eye Kurt


actually those pics were taken after the initial trial fit, but then one of the sinks was removed and trimmed to allow proper clearance and a very tight with the can. 180 brushed motors are 20mm diameter motors with flats on 2 sides, so these 20mm sinks are perfect fit, and make very tight contact on the rounded sides of the can, which is much better than the 180 sinks designed to only contact only some of the flat areas of the can. Also, the thermal compound is SOP when installing sinks especially for PC CPU heat sinks, it will ensure maximum thermal conductance between the heat source and the heat sink across minute imperfections/voids. Had this expensive silver based Arctic Silver compound left over from my PC consulting days, built many dozens of computers back in the day.
Feb 03, 2012, 04:58 PM
Always, against the wind
Thetis's Avatar

X-350 5B1 Military


Did you know that the X-350 5B1 is available?

http://www.casterracing.com/b2b/inde...roduct_id=1337
Feb 03, 2012, 06:14 PM
It flies!!! ... so who cares ?
erdnuckel2's Avatar
Quote:
Originally Posted by Thetis
Did you know that the X-350 5B1 is available?

http://www.casterracing.com/b2b/inde...roduct_id=1337
yeah!! and it is totally for free ... (or what else does a price of 0.00 in your cart mean ...)
Latest blog entry: Random Pictures ...
Feb 03, 2012, 07:36 PM
Always, against the wind
Thetis's Avatar
Quote:
Originally Posted by erdnuckel2
yeah!! and it is totally for free ... (or what else does a price of 0.00 in your cart mean ...)
Great for $0000000
Feb 03, 2012, 08:11 PM
'scuse me while I kiss the sky
Lafayette's Avatar
Has anyone flown with a gopro attached, and if yes how did it perform?
Stable, vibration / jello in the videos?
Does anyone have a link to gopro footage from that heli.
I have a tricopter, but was looking for something simple that could take a bit of wind and easy to fly, stable and maneuvrable.
Thank you very much!
Feb 03, 2012, 08:53 PM
Always, against the wind
Thetis's Avatar
Quote:
Originally Posted by Lafayette
Has anyone flown with a gopro attached, and if yes how did it perform?
Stable, vibration / jello in the videos?
Does anyone have a link to gopro footage from that heli.
I have a tricopter, but was looking for something simple that could take a bit of wind and easy to fly, stable and maneuvrable.
Thank you very much!
Message #77 he is working on a mount for a Gopro.


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